GT casque M3

Taille Tour de tête (cm) Tour de tête (pouces)
XS 53 – 54 cm 20¾ – 21¼ inches
S 54 – 56 cm 21¼ – 22 inches
M 56 – 57 cm 22 – 22½ inches
L 57 – 59 cm 22½ – 23¼ inches
XL 59 – 60 cm 23¼ – 23¾ inches
XXL 60 – 62 cm 23¾ – 24½ inches